> make -C lib all
> make[7]: Entering directory
> `/home/administrativo/xen/xen-4/xen-4.0.0/debian/build/build-tools/tools/blkta
> p2/vhd/lib'
> make[7]: Nothing to be done for `all'.
> make[7]: Leaving directory
> `/home/administrativo/xen/xen-4/xen-4.0.0/debian/build/build-tools/tools/blkta
> p2/vhd/lib'
> make[6]: Leaving directory
> `/home/administrativo/xen/xen-4/xen-4.0.0/debian/build/build-tools/tools/blkta
> p2/vhd'
> gcc -O2 -fomit-frame-pointer -m32 -march=i686 -fno-strict-aliasing -std=gnu99
> -Wall -Wstrict-prototypes -Wno-unused-value -Wdeclaration-after-statement
> -D__XEN_TOOLS__ -MMD -MF .vhd-util.d -D_LARGEFILE_SOURCE
> -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE
> -mno-tls-direct-seg-refs -Werror -Wno-unused -I../include -D_GNU_SOURCE
> -Wp,-MD,.vhd-util.d -o vhd-util vhd-util.o -L../../tools/libxc
> -lxenctrl -L../../tools/libxc -lxenctrl -Llib -lvhd -luuid
> /usr/bin/ld: cannot find -lxenctrl
> collect2: ld returned 1 exit status